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Alpha Radiation Emitters Device for the Treatment of Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia (DaRT)

A Safety and Effectiveness Study of Intratumoral Diffusing Alpha Radiation Emitters for the Treatment of Malignant Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03737734
Enrollment
30
Registered
2018-11-09
Start date
2018-12-31
Completion date
2026-12-01
Last updated
2026-04-06

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mucosal Neoplasm of Oral Cavity, Skin Cancer, Soft Tissue Neoplasm

Keywords

Squamous Cell Carcinoma, SCC, Skin Cancer, Skin metastasis, HNSCC, Carcinoma, Squamous, CMN, Basal cell carcinoma, Superficial sarcoma, Kaposi sarcoma, Alpha radiation, Cutaneous lesion, Tongue cancer, Lip cancer, Brachytherapy

Brief summary

A unique approach for cancer treatment employing intratumoral diffusing alpha radiation emitter device for superficial cutaneous, mucosal or soft tissue neoplasia

Detailed description

This will be a prospective, open label, single arm, controlled study, assessing the safety and efficacy of diffusing alpha emitters radiation therapy (DaRT) delivered through radioactive seeds inserted into the tumor. This approach combines the advantages of local intratumoral irradiation of the tumor, as used in conventional brachytherapy, with the power of the alpha radiation emitting atoms, that will be introduced in quantities considerably lower than radiation therapy already used in patients. Superficial lesions with histopathological confirmation of malignancy will be treated using DaRT seeds. Reduction in tumor size 70 days after DaRT insertion will be assessed. Safety will be assessed by the incidence, severity and frequency of all Adverse Events (AE).

Interventions

An intratumoral insertion of a seed(s), loaded with Radium-224, securely fixed in the seeds. The seeds release by recoil into the tumor short-lived alpha-emitting atoms.

Sponsors

Alpha Tau Medical LTD.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Subjects with histopathological confirmation of primary or secondary malignant cutaneous neoplastic lesions, or oral cavity mucosal tumors, or superficial soft tissue sarcoma. * Subjects with a tumor size ≤ 7 centimeters in the longest diameter. * Patients who have either failed first-line treatment, or are medically unfit for standard of care (surgery, external-beam radiation therapy or chemotherapy), or refuse standard of care. * Subjects' ECOG Performance Status Scale is \< 2. * Subjects' life expectancy is more than 6 months. * Platelet count ≥100,000/mm3. * International normalized ratio of prothrombin time ≤1.8. * Creatinine ≤1.9 mg/dL. * Women of childbearing potential (WOCBP) will have evidence of negative pregnancy test. * Subjects are willing to sign an informed consent form.

Exclusion criteria

* Subject has a tumor of Keratoacanthoma histology. * Patients with significant comorbidities that the treating physician deems may conflict with the endpoints of the study (e.g., poorly controlled autoimmune diseases, vasculitis, etc.) * Patients undergoing systemic immunosuppressive therapy excepting intermittent, brief use of systemic corticosteroids * Volunteers participating in another interventional study in the past 30 days which might conflict with the endpoints of this study or the evaluation of response or toxicity of DaRT. * High probability of protocol non-compliance (in opinion of investigator) * Women who are pregnant or breastfeeding.

Design outcomes

Primary

MeasureTime frameDescription
Tumor response to DaRT9-11 weeks post DaRT insertionAssessed using the Response Evaluation Criteria in Solid Tumors (RECIST) (Version 1.1)
Adverse EventsUp to 24 MonthsThe incidence, frequency, severity and causality of acute adverse events related to the DaRT treatment according to Common Terminology and Criteria for adverse events (CTCAE) version 5.0.

Secondary

MeasureTime frameDescription
Reduction in tumor volume9-11 weeks post DaRT insertionbased on imaging
DaRT seeds placementDay of insertion procedureAssessment by localization of the DaRT seeds in the tumor using CT imaging on the day of DaRT insertion
Change in quality of lifeDay 15, Day 30, Day 70, Day 180 post DaRT insertionAssessment of patient reported health-related Quality of Life outcome after DaRT, using QoL questionnaire Skindex-16 questionnaire score
Adverse EventsUp to 24 MonthsAll Adverse Events (AE) related and unrelated to the study treatment
Progression Free Survival24 months post DaRT insertionTime elapsed from response to disease progression

Countries

Israel

Contacts

PRINCIPAL_INVESTIGATORNoga Kurman, MD

Davidof Cancer Institution at Rabin Medical Center Israel

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 7, 2026